[PATCH] D143146: [Assignment Tracking] Fix migrateDebuginfo in SROA

[Orlando Cazalet-Hyams via Phabricator via llvm-commits]

Orlando added a comment.

Additional note: I added `-sroa-skip-mem2reg` / `SROASkipMem2Reg` as a testing and debugging flag to improve testing of assignment tracking debug-info. It's useful to be able to verify that the SROA'd stores are linked to the resultant dbg.assigns (i.e. their `DIAssignID` metadata is correct). It's much easier to tell SROA "please don't mem2reg" than to come up with or reduce inputs that result in SROA scalaraizing something without those stores getting promoted by mem2reg.


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  https://reviews.llvm.org/D143146/new/

https://reviews.llvm.org/D143146